Albedo Estimates - Approach 1

("Allometric" Approach)

Summary: This document contains a summary of albedo estimates produced through 'Approach 1', including the figures listed below:

• Section 1. Plots relevant to final albedo estimates.
• Section 2. Mixed effects model + output.
• Section 3. Relevant data + albedo estimates for each site.

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Section 1

This figure shows several plots related to the final albedo estimates produced by Approach 1.

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Section 2

This figure shows an initial attempt at a mixed effects model analysis.

Correlation matrix of explanatory variables:

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Model in R: Random effect is month nested under site ("LocalityName")

model <- lmer(Composite_Albedo ~ Treatment +
                      Productivity_Index +
                      Clearcut_Lidar +
                      Moose_Density +
                      Red_Deer_Density +
                      Roe_Deer_Density +
                      (1 | LocalityName/Month),
              data = model_data)

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Model Output:

	Composite_Albedo
Predictors	Estimates	CI	p
(Intercept)	0.19041	0.12446 – 0.25635	<0.001
Treatment [UB]	-0.00019	-0.00091 – 0.00053	0.607
Productivity_Index	-0.09089	-0.37584 – 0.19406	0.532
Moose_Density	0.00063	-0.00006 – 0.00131	0.072
Red_Deer_Density	0.00280	-0.00490 – 0.01051	0.476
Random Effects
σ2	0.00
τ00 Month:LocalityName	0.01
τ00 LocalityName	0.00
ICC	1.00
N Month	12
N LocalityName	15
Observations	360
Marginal R2 / Conditional R2	0.041 / 0.999

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Exploring Model Fit:

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Section 3

This section shows relevant data and albedo estimates for each SustHerb site.

## Site:  bratsberg

## Site:  didrik_holmsen

## Site:  drangedal1

## Site:  drangedal3

## Site:  drangedal4

## Site:  eidskog

## Site:  fet_3

## Site:  fritsoe1

## Site:  fritsoe2

## Site:  furesdal

## Site:  halvard_pramhus

## Site:  hi_tydal

## Site:  kviteseid1

## Site:  kviteseid2

## Site:  kviteseid3

## Site:  malvik

## Site:  namdalseid_1kub

## Site:  nome_cappelen1

## Site:  nome_cappelen2

## Site:  notodden3

## Site:  notodden5

## Site:  notodden6

## Site:  nsb_verdal

## Site:  selbu_flub

## Site:  selbu_kl

## Site:  selbu_sl

## Site:  singsaas

## Site:  sl_tydal

## Site:  stangeskovene_aurskog

## Site:  stangeskovene_eidskog

## Site:  steinkjer_1bbb

## Site:  steinkjer_2bbb

## Site:  stig_dahlen

## Site:  sub_namdalseid

## Site:  truls_holm

## Site:  verdal_1vb

## Site:  verdal_2vb